Home / 38,436.56-53,042.54-21,440.38

Finding the Fourth Proportional to 38,436.56, 53,042.54 and 21,440.38

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Solution

The fourth proportional to 38,436.56, 53,042.54 and 21,440.38 is: 29,587.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,436.56 : 53,042.54 = 21,440.38 : x
  2. Step 2: Convert to fraction form
    38,436.56/53,042.54 = 21,440.38/x
  3. Step 3: Cross multiply
    38,436.56x = 53,042.54 × 21,440.38
  4. Step 4: Simplify right side
    38,436.56x = 1,137,252,213.77
  5. Step 5: Solve for x
    x = 1,137,252,213.77/38,436.56
  6. Step 6: Final answer
    x = 29,587.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.